Nucleation kinetics, growth and studies of β-alanine single crystals.

Spectrochim Acta A Mol Biomol Spectrosc

Department of Physics, Aditanar College of Arts and Science, Tiruchendur 628 216, Tamil Nadu, India.

Published: June 2013

Solubility and metastable zone width for the re-crystallized salt of β-alanine was determined. Induction period measurement for the selected supersaturation ratios at room temperature (31 °C) was carried out for supersaturated aqueous solutions of β-alanine and it is noticed that induction period decreases with increase of supersaturation ratio. The nucleation parameters such as Gibbs free energy change, radius and number of molecules of the critical nucleus, interfacial tension and the nucleation rate have been evaluated by classical nucleation theory. Single crystals of β-alanine were grown using the optimized nucleation parameters by solution method and grown crystals have been subjected to various studies like XRD studies, FTIR, optical, thermal and SHG studies.

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http://dx.doi.org/10.1016/j.saa.2013.02.040DOI Listing

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